Analytic Methods of Sound Field Synthesis
This book treats the topic of sound field synthesis with a focus on serving human listeners though the approach can be also exploited in other areas such as underwater acoustics or ultrasonics. The author derives a fundamental formulation based on standar
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Jens Ahrens
Analytic Methods of Sound Field Synthesis
123
Jens Ahrens Deutsche Telekom Laboratories Technische Universität Berlin Ernst-Reuter-Platz 7 10587 Berlin Germany
ISSN 2192-2810 ISBN 978-3-642-25742-1 DOI 10.1007/978-3-642-25743-8
e-ISSN 2192-2829 e-ISBN 978-3-642-25743-8
Springer Heidelberg New York Dordrecht London Library of Congress Control Number: 2011945029 Ó Springer-Verlag Berlin Heidelberg 2012 This work is subject to copyright. All rights are reserved, whether the whole or part of the material is concerned, specifically the rights of translation, reprinting, reuse of illustrations, recitation, broadcasting, reproduction on microfilm or in any other way, and storage in data banks. Duplication of this publication or parts thereof is permitted only under the provisions of the German Copyright Law of September 9, 1965, in its current version, and permission for use must always be obtained from Springer. Violations are liable to prosecution under the German Copyright Law. The use of general descriptive names, registered names, trademarks, etc. in this publication does not imply, even in the absence of a specific statement, that such names are exempt from the relevant protective laws and regulations and therefore free for general use. Printed on acid-free paper Springer is part of Springer Science+Business Media (www.springer.com)
Preface
The present book summarizes the work that I have performed in the context of my doctoral dissertation and my subsequent activities at the Quality and Usability Lab, which is jointly run by the University of Technology Berlin and Deutsche Telekom Laboratories. The initial motivation for this work has been the question of how the two best-known methods of sound field synthesis, namely Wave Field Synthesis and Near-field Compensated Higher Order Ambisonics, relate. The answer to this question had been discussed in the research communities for years but a convincing conclusion had not been found. I present in this book a general formulation for the problem of sound field synthesis that allows for identifying above methods as particular solutions so that a juxtaposition is straightforward. Practical applications and synthesis of sound fields with diverse properties are then treated based on the general framework, which further facilitates the interpretation. The website http://www.soundfieldsynthesis.org accompanying this book makes available for download MATLAB/Octave scripts for all included simulations so that the reader can perform further investigations without having to start from scratch. As with any book, the people who deserve acknowledgements are too numerous to list. I therefore mention only those who receive my very special acknowledgements. All others who have contributed to my research work and who are not mentioned here shall be aware of my appreciation. Special thanks go to Sebastian Möller for putting immeasurable efforts in providing perfect working conditions and for giving me the freedo
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